Sole-leveling machine.



2 SHEETS-SHEET 1.

PATENTED JUNE 2, 1903.

H. WEBSTER.

APPLICATION FILED NOV. 6, 1902.

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PATENTED JUNE 2, 1908.

' H1 A. WEBSTER. .SOLE LEVELING MACHINE.

, A'BPLIOATION FILED NOV. 6, 1mm.

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SHEETS-SHEET 2.

" NiTEn I Patented June 2, 190352 WEBSTER SHOE MACHINE COMPANY, SETTS, ACORPORATION OFMAIN E.

OF IIAVERHILL, MASSACHU- SOLE-LE VELING MACHINE.

SPECIFICATION forming part of Letters Patent No; 729,820, dated June 2,1903.

Application filed November 6,1902- $erial No. 130,247. (No model.)

To all whom it may concern.-

Be it known that I, HAROLD A. WEBSTER, of Haverhill, in the county ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Sole-Leveling Machines, of which the following is aspecification.

This invention relates to sole-leveling niachines in which aleveling-tool is caused to act upon the bottom of a sole supported andpresented to it by a suitable jack, the tool and jack having suchrelative movements as will cause the tool to act effectively in levelingthe sole. In another application for Letters Patent of the UnitedStates, filed by me August 13, 1902, Serial No. 119,514, I have shown asole-levelingmachine of this class in" which the leveling-tool is arotary tool having a ribbed perimeter longitudinally curved to conformto the transverse curvature to be imparted to the bottom of asole, theribs of the tool being composed of independent rolls. In saidapplication the tool is represented as receiving a continuous rotationin one direction during the operation.

The present invention consists, mainly, in the provision of means forrocking or oscillating the tool instead of rotating it continuously,thereby giving the ribbed perimeter of the tool a back-and-forth motionupon the sole. This motion besides improving the quality of the Workenables the acting surface of the tool to be divided up into sections,each having a different longitudinal curvature from the other or others,so that the tool can be adjustably mounted upon its supporting-shaft andturned from time to time to bring any desired section into operativeposition, the curvature of one section being, for example, that suitedfor the fore part of the sole, while the curvature of another section issuited for the Shank part. i The invention Will now be described, andspecifically pointed out in the claims.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of a sole-leveling machineembodying my invention. Fig. 2 represents an end elevation of theleveling-tool and a 50 part of the connecting-rod which gives it arocking motion, the shaft on which the tool is mounted being shown insection. Fig. 3 represents a section on line 3 3 of Figs. 1 and 2.

Fig. 4 represents a longitudinal section of the tially the same asin'the above-mentioned ap- ,65

plication, excepting that the leveling-tool in stead of beingcontinuously rotated, as shown in said application, 'is rocked oroscillated give the acting portion of its periphery abackand-forth orpendulousmotion. The leveling tool has a longitudinally-curved andribbed perimeter, adapted to impart toa sole on the jack the usualtransverse curvature, the said perimeter being composed of a pluralityof rolls 2 3, adapted to rotate loosely, the rolls being preferablyformed and arranged substantially as Shown in the abovementionedapplication. The heads 4 and 5, in which the rolls 2 and 3 arejournaled, are formed on or affixed to a sleeve or tubular 8o hub 7,through which passes the operatingshaft 8, which imparts motion to thetool. The sleeve 7 is adapted to be locked to the shaft 8 in differentpositions, so that any desired section or longitudinal strip of itsperimeter may be caused to act on the sole, the locking means beinghereinafter described.

The means for rocking or oscillating the tool are preferably as follows:9 represents a connecting-rod, one end of which is pivoted at 10 to acrank-arm 12 on ashaft1'3, driven-by the power of themachine. The otherend of the connecting-rod is pivoted at 14: to an arm or car 15, affixedto the shaft 8 by means of a key or spline 16, said arm 15 having a hub17 surrounding the shaft 8. The rotation of the shaft 13 thereforeimparts, through the rod 9, a rocking motion to the shaft 8 and to theleveling-tool affixed thereto.

The means for locking the leveling-tool to mo the shaft, as here shown,are as follows: 18 represents a flange formed on or rigidly affixed toone end of the leveling-tool and provided with a plurality of orifices19, the number of orifices corresponding to the number of positions inwhich it is desired to lock the leveling-tool to the shaft. The arm isprovided with a spring-pressed bolt 20, adapted;

to engage either of the orifices 19, said bolt having a retracting knobor handle 21,. It will be seen that by withdrawing the bolt 20 andgiving the leveling-tool a partial rotation a different portion of itsperimeter may be brought into position for action, the said portionbeing retained in acting position by engaging the bolt 20 with anotherorifice 19.

The perimeter of the leveling} tool is divided into longitudinalsections, each having a different longitudinal curvature from the otheror others, there being as many sections as there are locking-orifices19. The different sections may be conveniently formed by making therolls 2 and 3 at one side of the tool of a different curvature from therolls at the opposite side, as represented in Fig.4, where the rolls atthe lower side of the tool are shown as having a lesser curvature thanthe rolls at the upper side.

It will be seen that by imparting to the leveling-tool a rocking motionits ribbed perimeter is caused to move back and forth or reciprocatewhile in contact with the sole, this motion being found to give animproved result. It will also be seen that the rocking motion permitsthe different sections of the tool to be made with different curvatures,thus enabling the operator to readily change the contour of the toolwhen shifting from the fore part to the shank, and vice versa, alsoenabling the same tool to act on soles of different sizes or degrees ofcurvature.

I ,do not'limit myself to the details of mechanism here shown foroperating or for adj usting the tool, as these may be variously modifiedWithout departing from the spirit of my invention.

I am aware that a leveling-roll journaled loosely in a frame which ismounted to oscillate on a center outside of and parallel with the axisof the roll is not now. My improved leveling-tool differs from the rollabove referred to in that its acting face is substantially concentricwith the axis of movement or oscillation of the tool, so that the toolhas no lateral oscillating movement, and therefore has not the tendencyto hammer and displace the work, which would exist if it were mounted tooscillate on a center outside of its axis of rotation. The concentricarrangement of the acting face relatively to the axis or center ofoscillation makes the action of the tool very efiective Withouthammering or displacing the work and gives results which in somerespects are more desirable than when the tool is continuously rotatedon an axis concentric with its acting face.

I claim- 1. A sole-leveling machine comprising a leveling-tool, andmeans for oscillating said tool to give its acting face a back-and-forthmotion, the said acting face being substantially concentric with theaxis or center of being rotatably mounted to bring either face intooperative position, and means for oscillating the tool.

4. A leveli-ngtool having a plurality of ribbed sections longitudinallycurved, and surrounding an axis or center of motion, said sectionshaving different longitudinal curvatures.

5. In a sole-leveling machine, the combination of the followingelements,viz., first, a leveling-tool comprising heads and rolls journaled insaid heads and collectively forming longitudinally-curved ribbedsections of varyingcurvature; secondly,ashafton which the said tool isadj ustably mounted, the shaft and tool having complemental lockingmeans to secure the tool to the shaft in different positions 3 andthirdly, means for oscillating the shaft and tool.

In testimony whereof I have affixed my signature in presence of twowitnesses.

HAROLD .A. WEBSTER.

Witnesses:

C. F. BROWN, E. BATOHELDER.

